Improvement in vapor-jet gas-machines



T. B. POGARTY. Vapor-Jet Gas-Machines.

' No. 201,|o1. Patented March 12, 1878..

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UNITED STATES PATENT OEEIoE.

THOMAS B. FOGARTY, OF JERSEY CITY, NEW JERSEY.

IMPRPVEMENT IN VAPOR-JET GAS-MACHINES.

Specification forming part of Letters Patent No. 201,101, dated March12, 1878; application filed December 20, 1876.

To all whom it may concern Be it known that I, THOMAS B. FOGARTY, ofJersey City, in the county of Hudson and State of New Jersey, haveinvented a new and useful Improvement in Gas-Machines, of Y which thefollowing is a specification:

The said invention relates to machines for making gas from hydrocarbonvaporized under pressure in a heated retort, and mixed with air byinduction, the process being regulated by the motion of the gas-holderconsequent upon the consumption of the gas; and the object of theinvention is to make the valve-gearing positive in its action, and toremove the valve-stem from the inductiontube, and enable its stem to beeffectively packed.

Figure 1 is a side elevation, partly in section, of my said improvedvalve-gear; and Fig. 2 is a plan of the same.

A is the vapor-tube leading from the retort. B is the vapor or inductionjet. 0 is the induction-tube, placed in front of the inductionjet. D isa double-seated vapor-valve, made to seat itself at both the top andbottom of its stroke. E is the air-valve, by which air is admitted tothe chamber F, whence it is drawn into the induction-tube by theinductive force of the vapor escaping from the jet. G is a walking-beam,connected at one end to the valves E and F by the rods g and g, and atthe other to the system of actuating-levers by the rod g H is a tube orchamber, forming a connection between the air-chamber F and a chamber,I, that incloses the stem of the valve 1). The system of valve-levers J,K, L, and

M is connected with the gas-holder by the rod N, and is essentially thesame as that described in the Patent No. 171,607, issued to me December28,1875, from which it differs by operating the valves through theintervention of the beam G.

For the efficient working of the machine, it is necessary that the stemd of the valve D work freely through its guides s s, as well as throughthe stufling-box T. As the guides cannot be relied on to prevent theescape of gas, and the packing in the stuffing-box may not besnfficientto resist an accidental pressure arising in the retort, I have devisedthe chamber 1 and the pipe or chamber H, forming a communication betweenthat and the air-chamber F, so that any leakage of vapor from the valvewill pass into the chamber F through the pipe H, and thence to thegasholder.

It is evident that while the chamber I is kept in communication with thegas-holder by the pipe H the pressure in it can never rise higher thanthat in the gas-holder.

I claim as my invention in automaticallyworking gas-machines, and desireto secure by Letters Patent- 1. The chamber, I placed between thestuffing-box T and the vapor-valve I).

2. The combination of the chamber I with the pipe H and the air-chamberF, substantially as described.

THOS. B. FOGARTY.

Witnesses:

WALTER PELL, WM. KEMBLE HALL.

